Electric vulcanizer.



E. MARTIN.

ELECTRIC VULGANIZER. APPLICATION II'LBD JULY 25. 1912.

1,078,263. Patented Sepm, 1913.

WITNESSES INVENTOR To all w/iofm, t may ,conce/Mi.'

f FREDERI hotesse.

Specicaton of Letters Iatent.

orFIcn j MARTIN, orronolve. Geuren-NIA.' ELEcTnIo VULCANIZER.

Patented sept. 1c, 1.913.

,Application filed July 25, 1.912. Serial No. 711,461. 'f

B e it knownthat I, FREDERICK MARTIN, a 'citizen of the United States,residinga-t Pomona, in the county ,of Los Angeles and -State'ofCalifornia, 'have invented a new ,f 'praofticalvulcanizen including adevice that will Aautomatically open and close the elec-` tric circuit,in order to automatically regulate the necessary amount of heat.

' The drawing discloses certain features, -butin practical fields thesefeatures may require alterations, to which the patentee entitled,provided the alterationsoare comprehended within 'the scope of what isclaimed.'

The invention comprises furtherfeatures and combination of pa1ts,',ashereinafter set forth, shown in the drawings .and claimed.

In the drawings Figure 1 is a front view of the improved vulcanizerconstructed in accordance with the invention. Fig. 2 is -a sideelevation of the same. Fig; 3 is a View in rear elevation. F ig. 4 isarplan view. Fig.- 5 is a bottom plan view showing the construction ofthe heater, Fig. vG is -a Sectional view on line 6--6 of Fig. `Referringto the drawings 1 designates the base of the vulcanizer, which isconstructed with` a flange 2, and is provided with a plurality ofresistance plates 4, which together with the base are to becomeelectrically heated, in order to convert the water in the pipe 5 intosteam. Projecting from one ofthe iianges of the base is anotfsetportionor extension 3, from which a bracket .arm 6 rises, This bracketarm G is secured to the extension 3, by `the casting 7, which is rivetedor otherwise secured at 8 to the extension. The bracket armA `isconstructed with anoverhanging portion 9, in which a rod l() isvertically movable. r This rod 10 is terminals 26 and 27.

threaded in the overhanging portion 9,-and 1s provided with a. wingedhead 11, whcrebv 'the rod 10 may be adjusted. To the lower end ofthe roda revolving plate 12.is swiveled` in any suitable manner as shown at 13,

.the .detailed structure of which, however, is

not particularly shown.. An inner tube of a rubber tire is adapted 4tobe held. between.

plate and vthe base of the vul- .the revolving camzer, In order to bevulcanized.

The end 14 of the tube 5 is secured'inanyl A suitable manner at 15 inthe iange of the base `1, and'threaded in the end portion 14 1s a shortpipe 16, to which the elbow, 17 is threaded., a pipe 18 is threaded intothe elbow 17 and terminates in a member 19 to which a. hollow tube 2Oconnects. This tube 20 is curved as shown in Fig. 1 and terminates in aplate 21 provided with a platinum contact 22. Thecontact 22 cooperateswith a like contact 28 of the' plate 24, which in turn is secured at 25tothe memberv 19.- The base 1 is provided-with neets the terminal 2T andthe Contact 2" while a wire 29-from any suitable source of currentsupply (not shin-vn) is connected to the terminal 26. A wire '30 alsoleads from the currentfsupply and connects to the contact '23.

Water from any suitable source (not shown) may be introduced into thepipe 5. Where it i-s converted into steam,'and since the resistanceplates are constructed of iron,

they become highly heated.A From this heat the water in the tube isconverted into steam,and since the tube 20 is connected to the tube 5,through the member 19, the pipe 18, the elbow l17 andthe pipe 1.6, thesaid tube 20 expands under-'the steam pressure, thereby separating thecontacts 22 and 23, and since such contacts are in-cir.- cuit with theCurrent supply', the circuit is made' andsbroken, thereby properly regu?lating the amount of heat necessary in the resistance plates forvulcanizing rubber tires and the like. In this manner the heat remainssubstantially,constant andiuniform.

vAs' the heat slightly' decreases, the contacts 22`an'd 23 come togetherand again the circuit is closed, vthereby heating resistance plates. a

From t-he foregoingit is to be observed that there has been devised`anovel an'dl A wire or lead conbase provided with an Otel-hangingnieniber,

of an adjustable device including a: revolving plate between which' andthe base anautoinobi'le tire is adapted to be clamped for vulcanizing, aseries of 'resistance plates adapted to be heated from any suitableSource of 'current supply and arranged in said base,.a pipe designed tocontain Water to be heated by the resistance plates and fixed in saidcasing and provided with an elbow at one end, a member adjustablyconnected, to said elbow and provided with an eXpa-nSible. tubeterminating in a plate prol -ber and having a point constituting astationary c0ntact,.said stationary .and 1novable. contacts being incircuit With the re-v sistance plates, said resistance plates adapted toheat the base and the pipe, and as the heat lvaries the tubecorrespondingly exf panels. oncontaets so as to open and close thecircuit.

ln testimony whereof Iliavesigned my naine to this speciication intliepreseneey of two subscribing witnesses. FREDERICK MARTIN. WitnessesJ. SGALLUP, C. R. Rowe.

